Lspv-load sensing proportioning valve is the part of break assembly .it senses the load of vehicle and aply an effective pressure with respective to the vehicle loaded or unloaded & break the vehicle.also avoid skiding of vehicle.
Not knowing what kind of vehicle you have, all I can do is guess that it is a load/height sensing proportioning valve.
It is a height sensing proportioning valve. It controls rear brake pressure depending on load.
The proportioning valve is used to determine the amount of brake power to be distributed to the rear wheels by sensing the height of the bed (differences in rear weight) if replacing valve you should properly bleed air out of system. The valve is there for a reason it should not be bypassed.
I Need Help With My 1992 Toyota Privia Please Answer My Question.
Proportioning valve may be faulty.
yes it does it is on the back axle attached to the gear potThe round thing in the middle.it will have 3 brake lines going into it Get yourself some penetrating fluid your gonna need it
That is the Rear Brake Proportioning Valve (also referred to as a Rear brake pressure regulator). Depending on the suspension position, it changes how much pressure is sent to the rear brakes. Depending on the situation, it may increase pressure (usually during high rear load conditions) or decrease the pressure to prevent unpredictable handling.
Check the LPV (Load proportioning valve), if fitted. It controls the amount of rear vs front braking under "heavy" loads, if faulty it will cause rear lock up. Another thing to check is that front brakes have been bled, and the front brake circuit is working at all.
In general, on most vehicles,particularly Front Wheel Drive & Light Utility Vehicles, the rear axle is fitted with a load sensing device.(This is easily spotted on the axle & it's operation should be fairly obvious.)This merely opens a valve more or less, according to the load on the rear axle (ie, passengers in a FWD car, or cargo, in a LUV) increasing or decreasing the amount of brake fluid applied to the rear wheels during the braking phase.
Located at the rear axle, there'll be a rod connected to the frame. The whole purpose of it is primarily for medium duty trucks (sometimes you'll see it on the heavier side of light duty), and it prevents an excessive application of the brakes when the vehicle is lightly loaded or unladen. As the weight of the cargo pushes the suspension down, that rod pushes down and opens up the valve further, allowing more fluid to flow with brake applications, thus giving you braking force necessary for the load being carried, while preventing too much brake force being applied when unladen.
no they dont
Some people have done exactly what you said. The only issue is the possibility of the rear brakes locking and causing control issues. Other people have put an adjustable control valve in it's place.